/**
* Validation routine for DNS server.
*
* @param string $server DNS server
*
* @return string error message if DNS server is invalid
*/
public function validate_dns_server($server)
{
clearos_profile(__METHOD__, __LINE__);
if (empty($server)) {
return;
}
if (!Network_Utils::is_valid_ip($server)) {
return lang('pptpd_dns_server_invalid');
}
}
/**
* Validation routine for site.
*
* @param string $site site
* @param boolean $check_uniqueness checks uniqueness
*
* @return string error message if site is invalid
*/
public function validate_site($site, $check_uniqueness = TRUE)
{
clearos_profile(__METHOD__, __LINE__);
if (!Network_Utils::is_valid_domain($site, TRUE)) {
return lang('web_proxy_site_invalid');
}
if ($check_uniqueness) {
$current = $this->get_exception_sites();
if (in_array($site, $current)) {
return lang('web_proxy_site_already_exists');
}
}
}
